Top burner assembly



March I, 1938. J. T. MARVIN ET AL 2,109,497

TOP BURNER ASSEMBLY Filed Sept. 6, 1934 IN VEH TOR 5 BY MA. 2,

A TTORNE Y Patented Mar. 1, 1938 PATENT. OFFICE TOP BURNER ASSEMBLY John 1*. Marvin, Fairview Village, and Birchard 1. Matthews, Cleveland, Ohio Application September 6, 1934, Serial No. 742,906

1 Claim. (Cl. 126-39) This invention relates to a complete assembly for the top burners of a gas stove or a range. It is aprimary object of the invention to obtain a compact assembly of this kind obviating the use of a front manifold and a series of gas cocks extending therealong. A further object is to provide the burner lighter as an integral part of the assembly rather than as an accessory to be added thereto. It further provides for the use of four top burners identical in construction so as to be, with their Bunsen tubes, completely interchangeable. The two gas cocks controlling the top burners are likewise interchangeable. The flash tubes to the lighter are integral with the Bunsen tubes of the burners. The central pilot light is formed integrally with the header supplying gas to the burners.

In the drawing: Fig. 1 is a plan view of the assembly. Fig. 2 is a vertical section on line 2- -2 of Fig. 1. Fig. 3 is an elevation of one of these burners with its unitary flash tube.

Referring to Fig. 1, III indicates a gas intake from an outside gas supply. This intake Ill leads 2 to a central header H from which gas is distributed to the several bumersl2, l3, l4, and I5. To opposite sides of this header I I are secured gas cocks i6 and ll of the dual type such as are shown in ourcopending application #735,686, o filed July 17, 1934. Valve I6 is secured to header H by an inlet projection l8 thereon engaging with the header by such means as screw threads. Two outlets l9 and lead to spuds-2l and 22 respectively that distribute into the Bunsen tubes 23 of their corresponding burners. A handle 24 controls gas cook l6 and, as disclosed in the above mentioned copending application, selectively distributes gas to burners l2 and I 5. Gas cock I! is in all respects identical with gas cock u it and is controlled by a handle 25. To interchange the two valves it is only necessary to turn them over and insert one in the place of the other. This is of great advantage since it eliminates the necessity of manufacturing more than a one type of valve for the top burners. To the bottompf the header is fastened a third gas cook,

26 having an outlet 21 leading to the oven burner. This valve is controlled by handle 28.

The burners, as are shown-more particularly in 50 3, have a bowl 3. in communication with the Bunsen tubes 23. The Bunsen tubes may be brought into the remote part of the burner in order to extend the length thereof to obtain a better mixture. Flash tubes 32 are cast integral- .5 1y with the respective burners and Bunsen tubes and overhang the center header ll whereby to conduct gas from the burners to. the constant pilot 33. Each burner is provided with a small injection orifice 34 that receives a mixture of gas as soon as the burner is turned on, which gas flows along'the flash tube .to the. constant pilot 33. There it ignites and flashes back to ignite gas issuing from the gas outlet port 35 of each burner.

An air opening is provided in the-bottom of each Bunsen tube 23, as is shown at 31 on burner' I2. The size of this air outlet is adjusted by a shutter plate 38 pivoted as at 39 to the bottom of each Bunsen tube. Obviously variation in the size of the opening 31 varies the quantity of air to be mixed with the gas injected from the spuds.

An arouate opening 36 is provided in the end ofeach Bunsen tube, that extends around the. bottom ofthev same to air opening 31, as seen on burner l2 in Fig. 1. The shutter 38 may then be opened and the Bunsen tubesdropped over its spud, so that the spud partially supports the burner. After this, the shutter may be adjusted. The outer end of the burner may be supported in any desired manner.

The assembly is installed as follows: Pipe III is led in from some point, preferably the rear of the stove, to the center of the top burner section. It will be seen that this eliminates piping around the stove to a front manifold, and eliminates the front manifold with its awkward construction. The header II is then secured by any suitable means to this pipe Ill. Valves l6, l1 and 26 are then fastened to header ll It will be seen that thus is provided a rigid center structure. With valves I6 and I1 interchangeable, each may be installed on either side of the header. The burners are then dropped onwith the cut-outs 36 dropping over the spuds to support the ZBunsen tube ends of the burners. The outer ends there-- of may be supported in any suitable way. Shutters 38 are adjusted to provide a suitable mixture. The flash tubes fall adjacent pilot opening'fl.

Handles 24, 25 and 28 extend to the front panel of the stove where they form a-neat and convenient-control cluster.

In operation, any burner may be turned on by its .gascock. Gas flows from orifice 34 into the flash tube, and to constant pilot 33, where it ignites and flashes back to ignite the burner.

It maythus be seen that a compact; heat burner and control assembly is provided, with a I minimum number of parts. The control mecha him may be removed as a unit. a I

It will be seen that by supporting the flash .be provided a structure such as is shown with" the tube cut oil at the end of the Bunsen tube, and a sheet metal or like tube inserted into the end of the cast tube to extend therefrom to the pilot.

What is claimed is: In a burner assembly, a supply device includ- .ing a projecting spud, and burner means removablymounted in said spud, said burner means comprising a Bunsen tube having means in its outer end adapted to tit over said spud, said last named means being constituted by an aperture extending entirely through the side wall of such outer end of said tube to approximately the medial longitudinal line therethrough and a pivoted plate secured to said tube to enclose said aperture at the side 0! the tube, said pivoted plate being movable to uncover said aperture whereby to permit the disengagement of said Bunsen tube from said spudby a direct lateral movement relatively to the axis of said spud.

JOHN T. MARVIN. BIRCHARD m'rrrmws. 

